Biogen Inc.
BIIB · NASDAQ-GS
| Date | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 30, 2026 | $255.39 | $258.73 | $251.19 | $253.62 | +1.59% | 1.30M |
| Oct 29, 2026 | $250.15 | $255.55 | $246.48 | $249.65 | +2.29% | 1.16M |
| Oct 28, 2026 | $244.93 | $258.78 | $243.03 | $244.05 | -3.43% | 2.49M |
| Oct 27, 2026 | $250.35 | $253.98 | $248.46 | $252.73 | +0.19% | 1.39M |
| Oct 26, 2026 | $251.02 | $254.11 | $249.61 | $252.26 | +0.63% | 958.85K |
| Oct 23, 2026 | $251.68 | $252.44 | $246.15 | $250.69 | -1.24% | 1.16M |
| Oct 22, 2026 | $240.61 | $254.41 | $240.02 | $253.84 | +5.34% | 2.24M |
| Oct 21, 2026 | $242.02 | $243.32 | $240.13 | $240.98 | -0.87% | 812.90K |
| Oct 20, 2026 | $236.79 | $244.65 | $235.96 | $243.10 | +4.12% | 1.49M |
| Oct 19, 2026 | $231.81 | $236.00 | $231.04 | $233.48 | +0.36% | 949.72K |
| Oct 16, 2026 | $235.75 | $236.87 | $232.36 | $232.65 | -1.15% | 1.46M |
| Oct 15, 2026 | $236.46 | $240.99 | $235.22 | $235.35 | +1.08% | 1.57M |
| Oct 14, 2026 | $228.99 | $234.20 | $228.00 | $232.83 | +1.72% | 1.95M |
| Oct 13, 2026 | $230.34 | $231.04 | $226.71 | $228.90 | -0.22% | 1.05M |
| Oct 12, 2026 | $233.98 | $238.24 | $229.00 | $229.41 | +1.64% | 1.46M |
| Oct 9, 2026 | $220.62 | $227.20 | $219.23 | $225.71 | +3.33% | 815.01K |
| Oct 8, 2026 | $220.15 | $223.09 | $215.73 | $218.43 | -1.67% | 1.34M |
| Oct 7, 2026 | $222.93 | $228.00 | $221.40 | $222.15 | -0.33% | 1.30M |
| Oct 6, 2026 | $224.53 | $225.97 | $218.00 | $222.89 | -0.31% | 1.01M |
| Oct 5, 2026 | $219.90 | $223.85 | $218.22 | $223.59 | +1.69% | 951.32K |
| Oct 2, 2026 | $222.98 | $224.08 | $219.81 | $219.88 | -1.32% | 780.43K |
| Oct 1, 2026 | $225.50 | $228.31 | $222.50 | $222.82 | -1.35% | 1.76M |
| Sep 30, 2026 | $227.23 | $229.36 | $225.51 | $225.88 | -0.52% | 1.55M |
| Sep 29, 2026 | $227.02 | $229.41 | $224.45 | $227.07 | -0.71% | 1.16M |
| Sep 28, 2026 | $225.87 | $230.49 | $225.51 | $228.69 | +0.48% | 1.33M |
| Sep 25, 2026 | $228.27 | $228.92 | $223.76 | $227.60 | +0.55% | 958.03K |
| Sep 24, 2026 | $226.80 | $228.72 | $224.31 | $226.36 | -0.51% | 1.03M |
| Sep 23, 2026 | $226.94 | $229.19 | $222.36 | $227.53 | +0.96% | 1.49M |
| Sep 22, 2026 | $219.22 | $226.43 | $219.00 | $225.36 | +2.87% | 1.11M |
| Sep 21, 2026 | $216.14 | $221.92 | $214.59 | $219.07 | +1.66% | 928.56K |
| Sep 18, 2026 | $219.05 | $220.17 | $215.26 | $215.50 | -1.62% | 2.64M |
| Sep 17, 2026 | $217.68 | $219.41 | $215.33 | $219.05 | +1.41% | 836.71K |
| Sep 16, 2026 | $216.41 | $218.29 | $214.81 | $216.01 | -0.07% | 606.49K |
| Sep 15, 2026 | $216.71 | $216.71 | $213.54 | $216.17 | -0.55% | 756.05K |
| Sep 14, 2026 | $221.00 | $222.25 | $215.56 | $217.36 | +0.10% | 629.93K |
| Sep 11, 2026 | $216.75 | $219.76 | $214.71 | $217.15 | +0.80% | 1.08M |
| Sep 10, 2026 | $209.92 | $216.70 | $208.93 | $215.43 | +2.23% | 936.64K |
| Sep 9, 2026 | $210.50 | $213.48 | $209.00 | $210.73 | -0.83% | 694.67K |
| Sep 8, 2026 | $215.45 | $217.28 | $210.54 | $212.50 | -3.77% | 617.83K |
| Sep 4, 2026 | $221.15 | $223.82 | $219.82 | $220.83 | -1.64% | 465.11K |
| Sep 3, 2026 | $225.44 | $225.80 | $221.23 | $224.51 | +0.83% | 550.75K |
| Sep 2, 2026 | $218.20 | $225.59 | $216.97 | $222.67 | +3.07% | 1.27M |
| Sep 1, 2026 | $218.11 | $219.30 | $213.60 | $216.04 | -0.28% | 785.50K |
| Aug 31, 2026 | $216.47 | $218.89 | $213.58 | $216.65 | -0.85% | 831.00K |
| Aug 28, 2026 | $221.17 | $222.00 | $216.78 | $218.50 | -1.35% | 517.48K |
| Aug 27, 2026 | $219.39 | $222.11 | $217.53 | $221.50 | +0.19% | 497.52K |
| Aug 26, 2026 | $219.34 | $222.00 | $218.69 | $221.07 | +0.14% | 647.33K |
| Aug 25, 2026 | $218.93 | $222.85 | $218.00 | $220.77 | +1.21% | 495.44K |
| Aug 24, 2026 | $216.40 | $218.50 | $213.96 | $218.12 | +0.62% | 649.83K |
| Aug 21, 2026 | $217.76 | $219.12 | $215.00 | $216.78 | +1.13% | 722.35K |
| Aug 20, 2026 | $217.98 | $221.29 | $214.16 | $214.35 | -3.25% | 808.63K |
| Aug 19, 2026 | $215.33 | $222.15 | $215.08 | $221.56 | +4.24% | 886.91K |
| Aug 18, 2026 | $211.00 | $214.07 | $210.01 | $212.55 | +1.63% | 694.01K |
| Aug 17, 2026 | $208.36 | $210.49 | $207.62 | $209.15 | -0.32% | 617.24K |
| Aug 14, 2026 | $210.01 | $210.79 | $208.22 | $209.83 | -0.39% | 554.82K |
| Aug 13, 2026 | $212.98 | $215.61 | $208.79 | $210.65 | +0.85% | 860.09K |
| Aug 12, 2026 | $203.52 | $209.22 | $201.00 | $208.87 | +2.44% | 789.44K |
| Aug 11, 2026 | $206.63 | $207.57 | $203.53 | $203.89 | -1.56% | 936.83K |
| Aug 10, 2026 | $206.70 | $210.02 | $206.29 | $207.13 | -0.39% | 706.42K |
| Aug 7, 2026 | $207.38 | $208.31 | $204.16 | $207.94 | — | 840.57K |
